diff options
| author | Warner Losh <imp@FreeBSD.org> | 2023-12-20 19:09:09 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2023-12-21 04:16:45 +0000 |
| commit | 9e6d11ce9a51d75ed6a94e180f2fb4e9188a2ba4 (patch) | |
| tree | 32b80166841e5c5308d21c3c9f6bc4f94b11d5ad | |
| parent | 486ee36440e19060a8c405fb2ba68cfdfa17d63e (diff) | |
| download | src-9e6d11ce9a51d75ed6a94e180f2fb4e9188a2ba4.tar.gz src-9e6d11ce9a51d75ed6a94e180f2fb4e9188a2ba4.zip | |
vtnet: Adjust rx buffer so IP header 32-bit aligned
Call madj(m, ETHER_ALIGN) to offset rx buffers when allocating them.
This improves performance everywhere, and allows armv7 to work at all.
PR: 271288 (PR had a different fix than I wound up with)
MFC After: 3 days
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D43136
| -rw-r--r-- | sys/dev/virtio/network/if_vtnet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/virtio/network/if_vtnet.c b/sys/dev/virtio/network/if_vtnet.c index 287af7751066..360176e4f845 100644 --- a/sys/dev/virtio/network/if_vtnet.c +++ b/sys/dev/virtio/network/if_vtnet.c @@ -1532,8 +1532,8 @@ vtnet_rx_alloc_buf(struct vtnet_softc *sc, int nbufs, struct mbuf **m_tailp) m_freem(m_head); return (NULL); } - m->m_len = size; + m_adj(m, ETHER_ALIGN); if (m_head != NULL) { m_tail->m_next = m; m_tail = m; |